Pin and collar connection apparatus for use with seismic braces, seismic braces including the pin and collar connection, and methods

摘要: A nonrigid connection apparatus includes a frame-side member securable to steel structural frame, brace-side seismic brace, and coupling element that nonrigidly secures the members each other. By way of example, may provide hinge type connection, which substantially isolates brace from nonaxial loads. As another be ball-and-socket loads absorbs any shear moment applied thereto when drifts out an intended plane frame. The also include collar stabilize prevent shears moments causing same buckle in unintended direction. Methods installing using are disclosed.